About This Item
- Full TextFull Text(subscription required)
- Pay-Per-View PurchasePay-Per-View
Purchase Options Explain
Share This Item
The silhouette of the curves of electrical logs is conventionally used for subsurface correlation. The new method hereafter described consists in making use of the numerical values of the shale resistivities for the elucidation of structural problems. Cross sections showing the subsurface correlation derived from electrical logs recorded on wells spaced over large distances throughout Louisiana, Mississippi, and Alabama are shown, illustrating the progressive variations of shale resistivities which occur with changes in locations or geological age. These clay or shale resistivity values may be correlated over considerable distances under favorable conditions, but they are particularly useful in short-range correlations under faulted field conditions.
Two logs are further presented which show cyclical variations in shale resistivity values. These variations are perhaps related to the variation in the lithologic characters of the shales, and to the salinity of their interstitial waters during the geological transgressions and regressions of the seas in which they were deposited.
Pay-Per-View Purchase Options
The article is available through a document delivery service. Explain these Purchase Options.
|Protected Document: $10|
|Internal PDF Document: $14|
|Open PDF Document: $24|
Members of AAPG receive access to the full AAPG Bulletin Archives as part of their membership. For more information, contact the AAPG Membership Department at [email protected].